Strap buckle



FIG. 1 is a top perspective view of a strap buckle showing the new design;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a side elevational view thereof;

FIG. 5 is a bottom plan view thereof; and,

FIG. 6 is a front elevational view thereof.

The rear portion of the strap buckle is not a part of the design sought to be patented and is therefore not shown in greater detail. The broken line portions of the disclosure are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a strap buckle, as shown and described. 